Picker-stick check for looms



(No Model.)-

H. A. WILLIAMS. PIOKER STICK CHECK FOR LQOMS.

No. 448,309. Patented Mar. 17,1891.

Witmmoao OW? L/n 1; y/ym UNITED STATES ATENT Fries.

HARRY A; \VILLIAMS, OF PENACOOK, NEW HAMPSHIRE.

PlCKER-STICK CHECK FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 44:8,309, dated March17, 1891.

Application filed April 28, 1890.

ing is a specification.

.tached.

This invention relates to the picker-stick checks for looms, the objectbeing to provide 7 a cushion or yielding stop device, against which thepicker-stick may strike and prevent its tendency to rebound,whichfrequently causes the yarn to slide off from the bobbin in the shuttle.

The invention will be fully set forth in the specification and claim,and clearly illustrated in the accompanying drawings, forming aninseparable part thereof, of which Figure 1 shows an end view of thelathe of a loom having my improved device at- Fig. 2 is an elevation,partly in section, of one end of the lathe, showing the picker and aportion of the picker-rod, shuttie-box, shuttle, and picker-stick, andmy improved device mounted upon the under side of the lathe in itsproper relative position. Fig. 3 is an enlarged side elevation of myimproved attachment as detached. Fig. 4 represents the same in plan.Fig. 5 is a crosssection of one end of that part of my attachment whichis attached to the lathe.

Similar reference letters designate like parts in all the figures.

A represents the lathe of a loom; B, an end casting, in which is mountedone end of the picker-rod I).

O C are the channel-bars, which form the sides of the shuttle-box.

D represents the shuttle; E, the picker; F, the picker-stick, and f thestrap connecting the two latter.

My improved attachment consists of a castin g G, provided withright-angled projections 9, one at each end, in which is mounted a rodH, on which is placed a collar I between said projections and having ahelical spring J operating expansively between said collar and one ofthe bearings g. Said collar may, if preferred, be loosely mounted uponthe rod H and provided with a set-screw I, as

Serial No. 349,776. (No model.)

to increase or diminish the tension of said spring J, for a purpose tobe hereinafter specified.

Upon one end of the rod H is mounted the stop-piece K, its normalposition being horizontal, as shown, and in order that such position maybe maintained one end of the rod H may be square, as shown in Fig. 2,and its bearing in theprojection g is likewise square, as seen in Fig.5.

The outer end of the stop-piece is provided with twoforwardly-projecting lugs or ears 7a 7a, one of which fits close againstthe side of one of the bearings or projections 9 when in its normalposition or at rest, and the other ear is far enough away from or beyondthe first ear to form a notch or recess 7c just the width of thepicker-stick, which fits within it. By arranging the ears as abovedescribed the inner car will assist in preventing the rotation of therod by resting against the side of the bearing when thelaterally-projecting stop-piece is struck by the stick in its outwardmovement, and by having the stick strike between the two ears therotation of the rod will be prevented after the inner ear has beenforced away from the bearing g, as the ears will engage with theopposite sides of the stick and prevent the twisting of the rod by thedownward pressure of the end of the stick as it is being swung aroundwith its pivotal point at the opposite end for a center. The ears may beflattened or made wider and rounding, if desired, so that they willpresent a greater surface to the sides of the stick and will not wear itas they would do if they were square or had sharp corners.

The bed-casting G is perforated at intervals, as shown in Fig. 4:,through which to insert screws for attachment to the lathe.

In use the pickerstick strikes between the ears 7; 7t and moves the rodH slightly in the direction of the arrows. Should the spring J becomeweak, so that the blow of the picker-stick moves the rod H too freely,the collar I may be adjusted closer to the stop K, and vice versa.

By constructing the check as above described it can be attached to theordinary looms without any alterations, except the holes in the loom forthe holes for the screws shown, by which it may be adjusted in order tohold the bed-casting in place, and it can be attached to the under sideof the lathe, so that it is entirely out of the way and will not presentany points or projections for catching the thread or clothes of theoperators. It is complete and compact, and the ears forming the recessbetween them for the reception of the picker-stick will engage with thesides of the stick, and thus assist in pre- Venting the rod fromturning, which it has a tendency to do from the stick acting upon it atone side.

Hav ng described my improvement, whatI claim 1s The combination, in apicker-stick check for looms, of a bed-casting adapted to be secured t0the lathe of a loom and having a right-angled projection at each end, aspringactuated rod mounted therein having a laterally-extendingstop-piece secured to one end, said stop-piece having twoforwardlyextending ears, one of which fits close against the side of oneof the projections or bearings upon the bed-casting, and the other oneis far enough away from orbeyond the first ear to form a recess for thereception of the picker-stick, substantially as described.

In testimony whereof I affix my signature in presence of two Witnesses.

HARRY A. XVILLIAMS. Witnesses:

J. B. THURsToN, N. E. MARTIN.

